Question

Let Sₖ = (1 + 2 + 3 + ...... + k)/k. If S₁² + S₂² +.....+ S₁₀² = (5/12)A, then A equal to:
(A) 283 (B) 301
(C) 303 (D) 156

Answer 1

hi mate solution is given above

see in attachment

may be it will help u